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EN 1.7390 Steel vs. S44536 Stainless Steel

Both EN 1.7390 steel and S44536 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.7390 steel and the bottom bar is S44536 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
22
Fatigue Strength, MPa 310
190
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 74
78
Shear Strength, MPa 440
290
Tensile Strength: Ultimate (UTS), MPa 710
460
Tensile Strength: Yield (Proof), MPa 480
280

Thermal Properties

Latent Heat of Fusion, J/g 260
290
Maximum Temperature: Mechanical, °C 510
990
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 40
21
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.7
2.8
Embodied Energy, MJ/kg 23
41
Embodied Water, L/kg 69
140

Common Calculations

PREN (Pitting Resistance) 6.8
22
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
89
Resilience: Unit (Modulus of Resilience), kJ/m3 600
200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
17
Strength to Weight: Bending, points 23
17
Thermal Diffusivity, mm2/s 11
5.6
Thermal Shock Resistance, points 20
16

Alloy Composition

Carbon (C), % 0 to 0.18
0 to 0.015
Chromium (Cr), % 4.0 to 6.0
20 to 23
Iron (Fe), % 91.9 to 95.3
72.8 to 80
Manganese (Mn), % 0.3 to 0.8
0 to 1.0
Molybdenum (Mo), % 0.45 to 0.65
0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.050 to 0.8
Nitrogen (N), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0
0 to 0.8